From: Jaap-Jan Boor <jjboor@aimsys•nl>
To: Steven Scholz <steven.scholz@imc-berlin•de>
Cc: "linuxppc-embedded@lists•linuxppc.org"
<linuxppc-embedded@lists•linuxppc.org>
Subject: Re: Preemptive Kernel and MPC8xx ???
Date: Mon, 24 Nov 2003 10:46:43 +0100 [thread overview]
Message-ID: <1069667203.31339.146.camel@linpc003.aimsys.nl> (raw)
In-Reply-To: <3FC1BAC8.6030305@imc-berlin.de>
On Mon, 2003-11-24 at 09:01, Steven Scholz wrote:
> Hi,
>
> >> is somebody actually using the preemptive kernel patches ...
> >>
> > Yes I do on 2.4.20 and 2.4.22 from kernel.org. So far all seems
> > to work but didn't do any measurements on it.
> So you're using vanilla 2.4.22 on your MPC8xx board!?
yes, am I stupid?
Currently I use smc uart, scc ethernet and a modified
cpm_spi driver (from the great Denx) with interrupt handling,
my 850 board boots ok from nfsroot
>
> > (I both use the preempt and low-latency patches)
> Sound interessting.
> Could you please give me a link to find the mentioned "low-latency patches".
it comes from Andrew Morton's page
http://www.zip.com.au/~akpm/linux/schedlat.html
I you have to enable this by hand in arch/ppc/config.in (look at
arch/i386/config.in) with
bool 'Low latency scheduling' CONFIG_LOLAT
dep_bool 'Control low latency with sysctl' CONFIG_LOLAT_SYSCTL
$CONFIG_LOLAT
>
> Thanks,
>
> Steven
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-11-24 9:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-23 12:02 Preemptive Kernel and MPC8xx ??? Steven Scholz
2003-11-24 7:20 ` Jaap-Jan Boor
2003-11-24 8:01 ` Steven Scholz
2003-11-24 9:46 ` Jaap-Jan Boor [this message]
2003-11-24 9:55 ` Steven Scholz
2003-11-24 16:35 ` Marius Groeger
2003-11-24 22:33 ` Jaap-Jan Boor
2003-11-25 8:13 ` Steven Scholz
2003-11-26 16:19 ` Jaap-Jan Boor
2003-11-26 15:08 ` Steven Scholz
2003-11-26 16:23 ` Jaap-Jan Boor
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